At least four people died overnight as Russian drone and missile strikes continued to pound Ukraine’s towns and cities, local officials said Saturday. Meanwhile, Moscow’s troops continued their grinding advance through the country’s east.

The Ukraine conflict is the first major drone war in military history. Despite tactical losses on several parts along the line of contact, the Ukrainian military has continued to maintain strategic pressure on Russia by targeting and attacking major targets behind enemy lines.

As an unconventional pick to lead the nation’s intelligence service, Tulsi Gabbard faced a barrage of questions about her past comments on Syria, Russia, foreign surveillance and President Donald Trump at her confirmation hearing Thursday.

Tulsi Gabbard, President Trump’s pick as director of national intelligence, testified at a confirmation hearing before the Senate Intelligence Committee.